CN211311213U - Novel magnetic coagulation device - Google Patents
Novel magnetic coagulation device Download PDFInfo
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- CN211311213U CN211311213U CN201922028301.6U CN201922028301U CN211311213U CN 211311213 U CN211311213 U CN 211311213U CN 201922028301 U CN201922028301 U CN 201922028301U CN 211311213 U CN211311213 U CN 211311213U
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Abstract
The utility model discloses a novel magnetism thoughtlessly congeals device, including adsorption zone, thoughtlessly congeal district, flocculation area, water distribution area, settling zone, inlet manifold, diatomaceous earth add feeder tube, magnetic add feeder tube, PAC coagulant add feeder tube, PAM flocculating agent add feeder tube, magnetic regeneration pipe, magnetic back flow, sludge discharge pipe, diatomaceous earth mixing mixer, concrete mixer, flocculation mixer, mud scraper, magnetic backwash pump, high-speed cutter, magnetic separator. The beneficial effects of the utility model are that, the inside reaction time of device is short, and area is little, can effectively remove the phosphorus, fall pollutants such as suspended solid to utilize unique microporous structure of diatomaceous earth and good adsorption efficiency, strengthened it and fallen functions of pollution index such as COD, BOD, ammonia nitrogen, colourity, and reach the purpose that system optimization is increased in effect.
Description
Technical Field
The utility model relates to the water treatment field specifically arrives a novel magnetism thoughtlessly congeals device.
Background
The magnetic coagulation technology is a novel high-efficiency solid-liquid separation method, based on contact flocculation, magnetic powder is added in the coagulation process to enable the magnetic powder to become a nucleation substance in the coagulation process, the larger adsorption capacity of the magnetic powder is utilized to adsorb and gather other fine particle substances at the level of colloidal particles to form larger compact flocs, and the high-density characteristic of a device is utilized to enable the flocs to have better precipitation characteristic, so that high-efficiency solid-liquid separation is realized. Compared with the traditional flocculation precipitation process, the process has the advantages of good flocculation settling property and small occupied area.
The sewage discharge standard of the environmental protection industry is continuously improved, old sewage plants are all faced with the capacity expansion and the upgrading reconstruction of sewage facilities, however, the biggest obstacle in the engineering implementation process is the problem of land occupation, and therefore, the environmental protection industry urgently needs a novel sewage advanced treatment process which is multifunctional, efficient and saves land occupation.
The diatomite is used as a mineral resource, has a unique microporous structure and excellent adsorption performance, is widely applied to purification treatment of swimming pool water, landscape water, hot spring water, small sewage treatment equipment and the like as a filter aid, and achieves a better treatment effect on pollution indexes such as COD (chemical oxygen demand), BOD (biochemical oxygen demand), ammonia nitrogen, chromaticity and the like.
Disclosure of Invention
The utility model relates to a novel magnetism thoughtlessly congeals device, the device mainly include major structure, technology pipeline, agitated vessel, sludge thickening equipment, magnetic recovery plant. The device is characterized in that the main structure mainly comprises an adsorption zone (R1), a coagulation zone (R2), a flocculation zone (R3), a water distribution zone (R4) and a sedimentation zone (R5), the process pipeline mainly comprises a water inlet main pipe (P1), a diatomite adding pipe (P2), a magnetic powder adding pipe (P3), a PAC coagulant adding pipe (P4), a PAM flocculant adding pipe (P5), a magnetic powder regeneration pipe (P6), a magnetic powder return pipe (P7) and a sludge discharge pipe (P8), the stirring equipment mainly comprises a diatomite mixing stirrer (E1), a concrete stirrer (E2) and an E3-flocculation stirrer, the sludge concentration equipment is a sludge scraper (E4), and the magnetic powder recovery equipment mainly comprises a magnetic powder return pump (E5), a high-speed shearing machine (E6) and a magnetic separator (E7).
The adsorption zone is internally communicated with a water inlet main pipe and a diatomite feeding pipe and is provided with a diatomite mixing stirrer. The total sewer of intaking leads to the adsorption zone bottom from adsorption zone upper portion, and the diatomaceous earth is thrown the pipe and is thrown the diatomaceous earth to the adsorption zone bottom, utilizes diatomaceous earth mixer to stir, makes diatomaceous earth and waste water fully contact, adsorbs the organic matter in the waste water, and mixed waste water baffling rises, enters into the coagulation zone from the adsorption zone upper end overflow mouth.
And a magnetic powder regeneration pipe, a magnetic powder feeding pipe and a PAC coagulant feeding pipe are connected into the coagulation zone, corresponding medicaments are respectively fed to the upper end of the coagulation zone, and are fully stirred and mixed by using a coagulation stirrer, so that the diatomite, the suspended matters and the PAC coagulant are subjected to adsorption and collision reaction and flow downwards, and flow to the flocculation zone through a flow hole at the bottom of the coagulation zone.
And a PAM flocculating agent adding pipe is connected into the flocculation area, extends into the bottom of the flocculation area, is mixed with coagulated wastewater to gradually form a large floc, overflows to the water distribution area from the upper part, and enters the settling area from the bottom flow baffle.
The sedimentation zone adopts the inclined plate sedimentation technique to be equipped with the mud scraper, quick mud-water separation is realized to waste water in the sedimentation zone, and the clear water is collected through upper portion overflow weir and is discharged, and mud sinks to the sedimentation zone bottom, utilizes the mud scraper to collect to the sedimentation zone in the mud fill to hydraulic pressure to magnetic particle regeneration pipe utilizes magnetic particle backwash pump to magnetic particle recovery equipment.
The magnetic powder recovery equipment mainly comprises a magnetic powder reflux pump, a high-speed shearing machine (E6) and a magnetic separator (E7). The magnetic powder reflux pump pumps the mixed sludge to a high-speed shearing machine, flocs are scattered by utilizing high-speed centrifugal force and cutting action and then sent to a magnetic separator, the separation of magnetic powder and non-magnetic substances such as SS, diatomite and medicaments is realized, the magnetic powder refluxes to a coagulation area again, and other non-magnetic substances are discharged to a sludge treatment system through a sludge discharge pipe.
As an optimized proposal of the utility model, the hydraulic retention time of the adsorption area is 15min, the hydraulic retention time of the coagulation area and the flocculation area is 5min, and the hydraulic retention time of the sedimentation area is 30 min.
As an optimized scheme of the utility model, the diatomaceous earth adopts the particle diameter to be 200 mesh diatomaceous earth powder to dissolve for diatomaceous earth solution, carry out the wet process through the pump of dosing and throw with.
As the utility model discloses an optimal scheme, diatomaceous earth mixer and mixer all adopt spiral agitator, adopt gear drive, the stirring speed piece, and design rotational speed is adjusted to 200 ~ 400r/min, through the high-speed stirring effect, makes diatomaceous earth, magnetic, coagulant fully mix rapidly to increase the collision chance each other between colloidal particles, magnetic and the coagulant, make colloidal particles take off the steady absorption and form the floc granule. The flocculation stirrer adopts a paddle stirrer, the rotating speed is adjusted to be 80-100 r/min, the flocculating agent is enabled to be connected into compact floccules through the effects of adsorption, bridging and the like through slow stirring, and the slow stirring can avoid violent stirring of water flow and damage to the effect of sedimentation caused by coagulated flocculating particles.
As the utility model discloses an optimal scheme, the magnetic selects multiple particle diameter to mix and throws, and the particle diameter scope is 200 ~ 500 meshes to the magnetic in this particle diameter scope is as nucleation material, and settling velocity is faster than small-grain diameter magnetic, and the magnetic loss volume is few, and it is less not to participate in the magnetic of flocculation.
As an optimized scheme of the utility model, magnetic powder backwash pump adopts the better cam rotor pump of wearability, and its rotor is the full rubber cladding, high-accuracy clearance fit between rotor and the casing, and dry-type installation can be from inhaling, and is stand wear and tear, and difficult jam.
As an optimized scheme of the utility model, magnetic separation equipment adopts permanent magnetism rotary drum magnetic separator, and disk surface field intensity is not less than 4000Gs, and the central magnetic field intensity that flows is not less than 800Gs, and the speed that overflows is between 0.08 ~ 0.1m/s, and the magnetic recovery rate can reach more than 99%.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
R1-adsorption zone, R2-coagulation zone, R3-flocculation zone, R4-water distribution zone, R5-precipitation zone, P1-water inlet header pipe, P2-diatomite feeding pipe, P3-magnetic powder feeding pipe, P4-PAC coagulant feeding pipe, P5-PAM flocculant feeding pipe, P6-magnetic powder regeneration pipe, P7-magnetic powder return pipe, P8-sludge discharge pipe, E1-diatomite mixing stirrer, E2-concrete stirrer, E3-flocculation stirrer, E4-mud scraper, E5-magnetic powder return pump, E6-high-speed shearing machine, E7-magnetic separator
Detailed Description
The utility model relates to a novel magnetism thoughtlessly congeals device, the device mainly include major structure, technology pipeline, agitated vessel, sludge thickening equipment, magnetic recovery plant. The device is characterized in that the main structure mainly comprises an adsorption zone (R1), a coagulation zone (R2), a flocculation zone (R3), a water distribution zone (R4) and a sedimentation zone (R5), the process pipeline mainly comprises a water inlet main pipe (P1), a diatomite adding pipe (P2), a magnetic powder adding pipe (P3), a PAC coagulant adding pipe (P4), a PAM flocculant adding pipe (P5), a magnetic powder regeneration pipe (P6), a magnetic powder return pipe (P7) and a sludge discharge pipe (P8), the stirring equipment mainly comprises a diatomite mixing stirrer (E1), a concrete stirrer (E2) and an E3-flocculation stirrer, the sludge concentration equipment is a sludge scraper (E4), and the magnetic powder recovery equipment mainly comprises a magnetic powder return pump (E5), a high-speed shearing machine (E6) and a magnetic separator (E7).
The adsorption zone is internally communicated with a water inlet main pipe and a diatomite feeding pipe and is provided with a diatomite mixing stirrer. The total sewer of intaking leads to the adsorption zone bottom from adsorption zone upper portion, and the diatomaceous earth is thrown the pipe and is thrown the diatomaceous earth to the adsorption zone bottom, utilizes diatomaceous earth mixer to stir, makes diatomaceous earth and waste water fully contact, adsorbs the organic matter in the waste water, and mixed waste water baffling rises, enters into the coagulation zone from the adsorption zone upper end overflow mouth.
And a magnetic powder regeneration pipe, a magnetic powder feeding pipe and a PAC coagulant feeding pipe are connected into the coagulation zone, corresponding medicaments are respectively fed to the upper end of the coagulation zone, and are fully stirred and mixed by using a coagulation stirrer, so that the diatomite, the suspended matters and the PAC coagulant are subjected to adsorption and collision reaction and flow downwards, and flow to the flocculation zone through a flow hole at the bottom of the coagulation zone.
And a PAM flocculating agent adding pipe is connected into the flocculation area, extends into the bottom of the flocculation area, is mixed with coagulated wastewater to gradually form a large floc, overflows to the water distribution area from the upper part, and enters the settling area from the bottom flow baffle.
The sedimentation zone adopts the inclined plate sedimentation technique to be equipped with the mud scraper, quick mud-water separation is realized to waste water in the sedimentation zone, and the clear water is collected through upper portion overflow weir and is discharged, and mud sinks to the sedimentation zone bottom, utilizes the mud scraper to collect to the sedimentation zone in the mud fill to hydraulic pressure to magnetic particle regeneration pipe utilizes magnetic particle backwash pump to magnetic particle recovery equipment.
The magnetic powder recovery equipment mainly comprises a magnetic powder reflux pump, a high-speed shearing machine (E6) and a magnetic separator (E7). The magnetic powder reflux pump pumps the mixed sludge to a high-speed shearing machine, flocs are scattered by utilizing high-speed centrifugal force and cutting action and then sent to a magnetic separator, the separation of magnetic powder and non-magnetic substances such as SS, diatomite and medicaments is realized, the magnetic powder refluxes to a coagulation area again, and other non-magnetic substances are discharged to a sludge treatment system through a sludge discharge pipe.
Claims (6)
1. A novel magnetic coagulation device comprises a main body structure, a process pipeline, stirring equipment, sludge concentration equipment and magnetic powder recovery equipment, the device is characterized in that the main structure mainly comprises an adsorption zone (R1), a coagulation zone (R2), a flocculation zone (R3), a water distribution zone (R4) and a sedimentation zone (R5), the process pipeline mainly comprises a water inlet main pipe (P1), a kieselguhr adding pipe (P2), a magnetic powder adding pipe (P3), a PAC coagulant adding pipe (P4), a PAM flocculant adding pipe (P5), a magnetic powder regeneration pipe (P6), a magnetic powder return pipe (P7) and a sludge discharge pipe (P8), the stirring equipment mainly comprises a kieselguhr mixing stirrer (E1), a coagulation stirrer (E2) and an E3-flocculation stirrer, the sludge concentration equipment is a mud scraper (E4), and the magnetic powder recovery equipment mainly comprises a magnetic powder return pump (E5), a high-speed shearing machine (E6) and a magnetic separator (E7); the adsorption zone is internally communicated with a water inlet main pipe and a diatomite feeding pipe and is provided with a diatomite mixing stirrer; the water inlet main pipe is communicated to the bottom of the adsorption area from the upper part of the adsorption area, the diatomite is thrown to the bottom of the adsorption area by the diatomite throwing pipe, and is stirred by the diatomite mixing stirrer, so that the diatomite is fully contacted with the wastewater, organic matters in the wastewater are adsorbed, the mixed wastewater is deflected and ascended, and enters the coagulation area from an overflow port at the upper end of the adsorption area; the method comprises the following steps of (1) connecting a magnetic powder regeneration pipe, a magnetic powder feeding pipe and a PAC coagulant feeding pipe into a coagulation zone, respectively feeding corresponding medicaments to the upper end of the coagulation zone, fully stirring and mixing by using a coagulation stirrer to enable diatomite, suspended matters and the PAC coagulant to be subjected to adsorption and collision reaction and flow downwards, and flowing to the flocculation zone through a flow hole at the bottom of the coagulation zone; a PAM flocculating agent feeding pipe is connected into the flocculation area, extends into the bottom of the flocculation area, is mixed with coagulated wastewater to gradually form large flocs, overflows to the water distribution area from the upper part, and enters a settling area from a bottom flow baffle plate; the settling zone adopts an inclined plate settling technology and is provided with a mud scraper, wastewater is subjected to rapid mud-water separation in the settling zone, clear water is collected and discharged through an upper overflow weir, sludge is settled to the bottom of the settling zone, is collected into a mud bucket of the settling zone by the mud scraper and is hydraulically conveyed to a magnetic powder regeneration pipe, and is conveyed to a magnetic powder recovery device by a magnetic powder reflux pump; the magnetic powder recovery equipment mainly comprises a magnetic powder reflux pump, a high-speed shearing machine (E6) and a magnetic separator (E7); the magnetic powder reflux pump pumps the mixed sludge to a high-speed shearing machine, flocs are scattered by utilizing high-speed centrifugal force and cutting action and then sent to a magnetic separator, the separation of magnetic powder and non-magnetic substances such as SS, diatomite and medicaments is realized, the magnetic powder refluxes to a coagulation area again, and other non-magnetic substances are discharged to a sludge treatment system through a sludge discharge pipe.
2. The novel magnetic coagulation device as claimed in claim 1, wherein the hydraulic retention time of the adsorption zone is 15min, the hydraulic retention time of the coagulation zone and the flocculation zone is 5min, and the hydraulic retention time of the sedimentation zone is 30 min.
3. A novel magnetic coagulation device as claimed in claim 1, wherein the rotational speed of the screw type stirrer is 200-400 r/min for the diatomite mixer and the rotational speed of the paddle type stirrer for the coagulation stirrer are 80-100 r/min.
4. The novel magnetic coagulation device according to claim 1, wherein the outlet elevations of the diatomite feeding pipe, the magnetic powder feeding pipe, the PAC coagulant feeding pipe, the PAM flocculant feeding pipe and the magnetic powder backflow pipe are consistent with the water inlet elevations of each area; wherein the outlet elevation of the diatomite feeding pipe is consistent with the outlet elevation of the water inlet main pipe and is 250mm away from the bottom of the tank, the outlet elevations of the magnetic powder feeding pipe, the PAC coagulant feeding pipe and the magnetic powder return pipe are all designed to be 250mm below the liquid level, and the outlet elevation of the PAM flocculant feeding pipe is positioned on the horizontal center line of the water inlet overflowing hole in the flocculation area.
5. The novel magnetic coagulation device as claimed in claim 1, wherein the magnetic powder is returned to the coagulation zone after the mixed sludge in the settling zone is subjected to magnetic powder and floc separation by a magnetic powder recovery device, and the separated sludge is discharged to a sludge treatment system.
6. The novel magnetic coagulation device of claim 1, wherein the magnetic powder particle size is 200-500 meshes, the concentration of the magnetic powder in the coagulation zone is 200mg/L, the residual magnetic powder in the wastewater is the least, the recovery rate of the magnetic powder can reach more than 99%, and the adding amount of PAC and PAM is 40mg/L and 1.5mg/L respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028301.6U CN211311213U (en) | 2019-11-22 | 2019-11-22 | Novel magnetic coagulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028301.6U CN211311213U (en) | 2019-11-22 | 2019-11-22 | Novel magnetic coagulation device |
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| CN211311213U true CN211311213U (en) | 2020-08-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062384A (en) * | 2020-09-24 | 2020-12-11 | 北京工业大学 | Magnetic zeolite coupling magnetic coagulation process |
| CN112811538A (en) * | 2021-01-06 | 2021-05-18 | 北京国蓝环保科技有限公司 | Method for adding and recovering magnetic powder in sewage treatment |
-
2019
- 2019-11-22 CN CN201922028301.6U patent/CN211311213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062384A (en) * | 2020-09-24 | 2020-12-11 | 北京工业大学 | Magnetic zeolite coupling magnetic coagulation process |
| CN112811538A (en) * | 2021-01-06 | 2021-05-18 | 北京国蓝环保科技有限公司 | Method for adding and recovering magnetic powder in sewage treatment |
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